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    <script>
        var arr = [2, 6, 1, 77, 52, 25, 7, 88, 100];
        var max = arr[0];
        for (var i = 1; i <= arr.length; i++) {
            if (arr[i] > max) {
                max = arr[i];
            }
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        console.log('该数组中最大值为'+max);
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